Scrub brush



FIG. 1 is a perspective view of a scrub brush according to the invention.

FIG. 2 is a bottom view of a scrub brush according to the invention.

FIG. 3 is a top view of a scrub brush according to of the invention.

FIG. 4 is a front view of a scrub brush according to the invention.

FIG. 5 is a rear view of a scrub brush according to the invention.

FIG. 6 is a left side view of a scrub brush according to the invention; and,

FIG. 7 is a right side view of a scrub brush according to the invention. 

I claim the ornamental design for a scrub brush, as shown. 